Re: XL cpu upgrade

[Evan <mulcaste cadvision com>]

Hi,

Ben Myers (benmyers@ma.ultranet.com) in the US has lots of info/knowledge
about the XL pc variants, sells stuff , and is close to a distribution center
so he gets good deals on stuff. He monitors the comp.sys.dec newsgroup among
others. Try him.

(Sorry, don't know of a European source. I'm in Canada.)

Evan

P.S. The following is a response from Ben to the newsgroup on a similar
subject...


Steve,

If the motherboard in question carries DEC part# 54-23606-01, you have
a Celebris XL with an Alpha PowerGrade daughter card.  And you that is
what you have, I have power supplies in stock that match the board.  I
glommed onto some that Compaq had no room for in their warehouse, and
no willingness to keep any longer.  (You may note also the various
acts of hardware genocide Compaq is committing on the ex-DEC hardware:
info disappearing from Compaq web site, broken links, hard to
navigate.  Well, they are also getting rid of many of the spares,
too.)  $US 40 + exact shipping.

If you do not have a case for all your kit, I have those, too.
Probably the same price, but quite heavy.

Problem is I am on the other side of the pond.  If it is worth your
while to pay the freight, I can ship power supply and/or case to
you... Ben Myers

"Steve Jones" <steve@smj-acoustics.demon.co.uk> wrote:

>Apologies for any cross-posting

>I have a DEC MB that uses a plug-in Alpha 233 daughterboard. I have no other

>case or peripherals. I would like to purchase a newer Alpha system in the
>future, but as usual this has to work as a trial first to release the
>finance.

>The board has two standard AT style connectors (J16) and a third
>suplementary AT connector (J14).
>Also, there is an ATX (but only 8 by 2 pin) connector (J18) that seems to
>supply 3.3v to the processor daughterboard and PCI bus.

>Does any kind service engineer have the pin-outs/ins of these connectors, or

>could run a multimeter over their own to give me the correct voltages
>required at these pins.

>I must say the Compaq Web sites seem to be decimated when it comes to
>information on older DEC products, it gives me little incentive to invest in

>Alpha for the future. All have the sort of info that is easy to find
>elsewhere such as serial port, SCSI and Parallel pinouts, but not one Web
>document has any information of substance when it comes to service or fault
>finding info. What does a Compaq field engineer do, just swap-out board
>until it works I presume. It leads me to think that they want the product to

>die.

>Header    Label    Pins        Style

>J16            P9        6            AT    Molex
>J16            P8        6            AT    Molex
>J14                         6            AT    Molex
>J18                         8by2      ATX Molex

>MBoard ID    A50 94V-0

>Regards

>Steve Jones






Jaap Hogenberg wrote:

> Hi,
>
> I recently got hold of an old  DECpc XL 466d2. This is not an Alpha (yet)
> but a 486 dx2 machine.
> This machine has a CPU daughtercard which can be replaced. The upgrade
> path for these machines include Alpha CPU's.
> Does anyone know:
> - if these Alpha upgrades were actually sold at any point in time
> - were one could get a hold of one (cheap) , preferrably in Holland
> - if this is the same motherboard as used in the XL alpha machines ?
> - If I need to get a different "bios" when I replace the CPU board ?
> - were there ever dual pentium cpu-boards available ? (Keep in mind I
> already own
> 3 alpha's , but I have never owned a pentium (yet)   ;-)
>
> I could not find a lot of info on the digital websites , if anyone knows
> where to get more info , that would help a lot too !
>
> TIA,
> Jaap
>
> "Hi, I,m a .signature virus. Copy me into your .signature file to help me
> spread"
>
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